Heating, cooling, and ventilating apparatus



T. NEILS ON. HEATING, COOLING, AND VENTILATING APPARATUS.

APPLICATION FILED JAN. 17. I920.

Patented Dec. 6, 1921.

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HEATING, coouwn, AND VENTILATING APPARATUS.

APPLICATION FILED JAN.I7.19Z0. 1 399 147 Patented Dec. 6, 1921.

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T. NEILSON HEATING, COOLING, AND VENTILATING APPARATUS.

APPLICATION FILED JAN- ]7- I920. 1,399,1-i7, Patented Dec. 6, 1921.

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In ven ior UNITED STATE$ PATENT OFFICE.-

THOMAS NEILSON, OF LONDON, ENGLAND.

Specification of Letters Patent.

Application filed January 17, 1920. Serial No. 352,223.

To aZZ w hom it may concern,

Be it known that I, THoMAs NEILSON, asubject of the King of Great Britain, residing at London, England, have invented certain new and useful Improvements in and Connected with Heating, Cooling, and Ven' tilating Apparatus, of which the followingis a specification. 1

This invention has reference to heating, cooling and ventilating apparatus and parts connected therewith, and has particular reference to apparatus of the type suitable for use on board ship, and adapted to be set in position as a single unit, all the parts being contained in an inclosing casing. In the known type of apparatus a fan or blower is employed to pass air through. the casing, and valves are fitted for varying the course of the air current either causing it to pass through a temperature varying means or clear thereof.

The object of the-present invention is to provide improvements in apparatus of the above character whereby they are of. very compact form and of improved efiiciency, the combination of these two features in the one apparatus being obtained by an improved construction and arrangement of parts.

According to this invention the valves controlling the ingress and egress of the air are interdependent in their operation being controlled and operated by a single lever, and are contained in adjoining compartments being separated'one from the other by a division member which subdivides part of the casing and at the same time enables each subdivision to be placed in'comm'unieation with a part of the casing leading to the atmosphere, the position of the valves determining which subdivision is in communication with such art of the casing.- This'arrangement o subdivided chambers with interdependently operating valves enables a reversal of direction of air currents to be obtained without reversing the direction of rotation of the fan or blower.

Heretofore it hasbeen proposed to change the direction of fiow through such apparatus without changing the direction of rotation of the fan or blower by the use of interdependent valves, one of which closes the conduit for fresh air to the eye of the fan, and the other breaking the conduit from the fan.

to the heating apparatus by being formed as a removable cover thereto.

The foul air was then conducted from the distributing pipe to the eye of the fan, and passing through the fan, and avoiding the heater by closing the conduit to the-heater, and completing the passage of the foul air from the fan discharge, was permitted to flow into the atmosphere by means of a curved plate, pivotally mounted on a spindle, and operated conjointly with the valve closing the conduit of the fresh air to theeye of the fan. This valve at the same time completed the passage for the foul air thereto, and was formed as a curved plate pivotally mounted on a spindle rotatable on adjustment of the cover member to the heating apparatus.

Patented Dec. 6, 1921.

Advantageously the casing of the fan or blower constitutes a part of the entire casing, that is, the casing inclosing the valves.

and means for varying the temperature of the air passing through the apparatus also incloses the fan or blower, and thus the whole of the apparatus is inclosed in a casing of regular form and constitutes a serviceable single unit casing wherein all the parts are so arranged that practically the whole of the interior of the casing is employed.

The means for varying the temperature of the air, comprises a nest or plurality of tubes of comparatively short length and small bore, the plurality providing a large contacting surface for the air and the small bore causing the air currents to be divided into comparatively very thin streams which are quickly affected by the.

temperature of the cooling or heating me dium and thereby enable tubesof short lengthv to be employed with advantage.

In a single unit apparatus comprisin the above features the temperature contro ling means in the form of a large number of tubes of short length and small bore 1s arranged in the lower part'of the casing with the tubes vertically or horizontall disposed.

in a casing connected with means or supplying a heating or-cooling medium thereto. The lower part of the casingis in communication with preferably a single orifice leading to distributing conduits, and v is also fitted with .a valve whereby aircurrentsfrom the fan may be directed through the =ment d is se nest of tubes before assing to the said orifice, or alternatively irected to the orifice without passing through the tubes. Such valve is so disposed in the casing relatively to .the said nest of tubes that when the air is passed direct to the orifice the nest of tubes is practically cut oil from the other part of the casin thereby obviating the presence of circu ating or eddy currents around the temperature means. This valve may comprise a single hinged or pivoted member and serves as a means for placing the temperature means in and out of use, as well as controls the quantity of air passing through the temperature means and clear of such means. r

The invention will be further described in connection with the accompanying drawings, wherein:

lglure 1 is a sectional elevatlon of a s1n le unit ratus constructed according to this invention;

Fig. 2. is a vertical line 2--2 of Fig. 1; I

Figs. 3 and 4- are sectional plans taken on the lines 33 and 4.4= respectively of the fan or blower and b the air trunk casing which incloses the fan and communicates with a compartment 0. A similar compartarated therefrom by a division member e. he compartment a3 is shown as being in communication at one end with-the opening f leading to the air, and at the other end with the eye 9 of the fan; while the compartment 0 is connected at one end'withthe air trunk h and at the other end with the chamber j containing a directing valve 70. The chamber 7' connects at one-part with a compartment-Z leading to one end of the temperature changing means m, and at another part with a chamber '11. leading direct to an orifice 0 communicating with distributin conduits p.

Tile

temperature changing means m comprlses a comparativel great number of tubes m of small bore an short length disposed within a casing m. This nest of tubes is mounted between plates m which serve inclose the same and revent the circulation he casing m is fitted of air therearound. wlth valve controlled connections m for the supply of heating or cooling medium to the caslng m.

The arrangement and construction of the temperature changing means is extremely compact and efiiclent and serves to dividev the aircurrents into a great number of tliin streams which are very quickl affected by their frictional contact with t e inner surfaces of the tubes of small here. I

The fan a is disposed above the temperaeating, cooling and ventilating appa-.

section taken on the ture changing means on within the general pendent in their operation and serve to con-.

trol the direction of flow of the air currents through the apparatus, being operated through the medium of mechanism shown in Fig. l and in detail in Fig. 5. Such mechanism comprises two spindles r and s im alinement, one being actuated from the other in a reverse direction through the medium of quadrant. racks t, a spindle u, levers c and link w, a handle a: being provided on the end-of one of the spindles for actuating the mechanism.

The valves 7' and s are of curved construction as is apparent from Fig. 1, and are so connected to their corresponding spindles, and adapted to operate as to be balanced.

The position of these valves shown in Fig. 1 is that for the entry of air through the inlet f past the valves to the eye 9 of the fan, thence to the fan trunk it past the valve r to the chamber j and to the conduits p by way of the means we or chamber a or both. When the valves 1' ands are reversed the inlet is connected with the trunk h and the chamber j with the fan eye 9 by way of valve 8.

The air passing from the compartment 0 thetem erature changing means is entirely out ofl rom the air currents and circulation thereof around such means is entlrely prevented.

The fan is driven by a suitable motor the general casing of the appamounted on ratus.

I claimr 1. heating, cooling, and ventilating a paratus, comprising an outer casing subbers, a fan arrange in one chamber with the eye of the fan communicating with the other 'chamber,-a temperature varying means below said chambers, a communication with atmosphere and a communication with the i;120. divided in its upper art to form 'two chamsaid temperature varying means for'each said chamber, a control valve in each chamber adapted to close either of-said communicatlons in its respective chamber, sald valves I temperature varying means.

being connected for simultaneous movement and disposed so that one closes its respective communication to atmosphere while the other closes its respective communication with said temperature varying means.

2. A heating, cooling and ventilating apparatus comprising an outer casing sub-divided in its upper part to form two chambers, a fan arranged in one chamber with the eye of the fan communicating with the other chamber, a diaphragm sub-dividing the lower part of said outer casing, a temperature varying means fixed beneath said diaphragm, a distributing duct below said temperature varying means, a communication from each of said chambers in the upper part of the outer casing, through said diaphragm and said temperature varying means to said distributing duct, and through said diaphragm direct to said distributing duct, a singleregulating valve disposed to simultaneously control all of said communications, a communication for each of said chambers with the atmosphere, a control valve within each said chamber adapted to close either of its respective communications with atmosphere, or the communication with said temperature varying means, said control valves being connected for simultaneous movement and disposed so that one closes its respective communication to atmosphere while the other closes its respective communication to said 3. A heating, cooling and ventilating apparatus comprising an outer casing sub-divided in its upper part to form two chambers, a fan arranged in one chamber with the eye of the fan communicating with the other chamber, a diaphragm subdividing the lower part of said outer casing, a temperature varying means fixed beneath said diaphragm, a distributing duct below said temperature varying means, a communication from each of said chambers in the upper part of the outer casing, through said diaphragm and said temperature varying means to said distributing duct, and through said diaphragm direct to said distributing duct, a single regulating valve disposed to simultaneously control all of said communications, a communication for each of said chambers with the atmosphere, an

arcuate control valve within each said chamber adapted to close either of its respective communications with atmosphere, or the communication with said temperature varying means, a spindle for each valve arranged in alinement one with the other, and the valves fixed thereto respectively so that one closes its respective communication to atmosphere while the other closes its respec tive communication to said temperature varying means, and means for actuating said valves consisting of a lever on one valve spindle and outside said outer casing a toothed quadrant on said spindle, a second toothed quadrant gearing with the said first mentioned quadrant and mounted on a rotatable axis, a lever fixed to said axis, a lever fixed to the other valve spindle, and a link connecting said last mentioned levers.

4i. A heating, cooling and ventilating apparatus comprising an outer casing sub-divided in its upper part to form two chambers, a fan casing occupying an end in one chamber, with the eye of the fan opening into the other chamber, a temperature varying means below said chambers, a communication with atmosphere and a communication with said temperature varying means for chamber and contained fan casing, and the other chamber with which the eye of the fan communicates, an arcuate control valve in each said chamber adapted to close either of said lcommiinications in its respective chamber, a spindle for each valve, quadrant and. link mechanism connecting said spindle as set forth, the valves being mounted on their respectivespindles for simultaneous movement and disposed so that one closes its respective communications to atmosphere while the other closes its respective communication with said temperature varying means, a regulating valve arranged in the communication between said fan casing and said temperature varying means, a distribution duct below said temperature varying means, means connecting said temperature varying means and said distribution duct, and a communication from said regulating valve direct to said distribution duct sub-- 'stantially as set forth.

In testimony whereof I aflix my signature.

THOMAS NEILSON. 

